Numerical analysis of the effect of moving the pressure fields on the flow free and forced oscillations of level in the Azov Sea

Authors

  • Cherkesov L.V. Marine Hydrophysical Institute, Russian Academy of Science, Sevastopol, Российская Федерация
  • Shul'ga T.Ya. Marine Hydrophysical Institute, Russian Academy of Science, Sevastopol, Российская Федерация

UDC

532.59

Abstract

In the method of mathematical modeling to study the effect of inhomogeneous moving atmospheric pressure fields on the flow, free and forced vibrations of the Azov sea level in the constant wind. To test the hypothesis about the role of resonance mechanism in the event of extremely high amplitude vibrations of wind-surges and seiches generated moving baric field at a rate equal to the wavelength of the free speed. It was found that when the same wind moving across the Azov Sea baric perturbations during a half-cycle of natural oscillations cause internally, and after the termination of weathering - free vibrations with amplitudes that differ by no more than 14% from those obtained at constant atmospheric pressure. It is shown that the moving of the pressure front, an important but not decisive, role in the formation of the structure and trends of the Azov Sea level fluctuations.

Keywords:

Sea of Azov, sigma-coordinate model, free oscillations of the liquid, seiche-like, stationary currents, storm surges and sleeves, nodal lines, atmospheric front, free long-wave velocity

Author Infos

Leonid V. Cherkesov

д-р физ.-мат. наук, профессор, член-корреспондент НАН Украины, заведующий отделом теории волн Морского гидрофизического института РАН

e-mail: cherkesovl.lv@mail.ru

Tatyana Ya. Shul'ga

канд. физ.-мат. наук, старший научный сотрудник отдела теории волн Морского гидрофизического института РАН

e-mail: shulgaty@mail.ru

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Issue

2016. No. 2

Pages

99-110

Submitted

2016-04-14

Published

2016-06-30

How to Cite

Cherkesov L.V., Shul'ga T.Ya. Numerical analysis of the effect of moving the pressure fields on the flow free and forced oscillations of level in the Azov Sea. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2016, no. 2, pp. 99-110. (In Russian)

Copyright (c) 2016 Cherkesov L.V., Shul'ga T.Ya.

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